CN2468231Y - Real-time network terminal - Google Patents
Real-time network terminal Download PDFInfo
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- CN2468231Y CN2468231Y CN 01211589 CN01211589U CN2468231Y CN 2468231 Y CN2468231 Y CN 2468231Y CN 01211589 CN01211589 CN 01211589 CN 01211589 U CN01211589 U CN 01211589U CN 2468231 Y CN2468231 Y CN 2468231Y
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Abstract
The utility model relates to a real-time network terminal machine. The utility model is composed of a management control part, a server interface part, a keyboard, a liquid crystal display module, a miniature printer part and a power supply part, wherein, the management control part is composed of an SCM, a memory, a logic control circuit, a keyboard scanning circuit, a liquid crystal display control circuit, a buzz indicating control circuit, a liquid crystal backlight control circuit and a reset circuit. The interface control part is composed of an RS 485 interface control circuit, and the miniature printer part is composed of a miniature printing head, a printing management circuit, an interface circuit, a drive circuit, a printing head data converting circuit, a logic circuit and a printer power supply.
Description
The utility model relates to a kind of real-time network terminating machine, is applicable to business automation industries such as large, medium and small type general merchandise retail business, hotel, hotel, distribution Chain commercial enterprise.Be mainly used in the gathering of making out an invoice.
Existing terminating machine product adopts modulator-demodulator and background server to carry out communication more, because the speed limit of modulator-demodulator, being difficult to realization handles with the real time information of main frame (server), this just must improve the information processing capability of terminating machine, thereby increased the cost cost of terminating machine, reduced reliability of operation.
The terminating machine product is because hardware resource limitations adopts English or symbol menu more, and user interface is friendly inadequately, and miscue is unintelligible, has increased operation easier and user training time.
The business automation industry requirement is cash register end product fast efficiently, and be the decisive factor of the product speed of service running time of printer in the cash register end product.Though long with the dot matrix printer bill holding time that preceding is applied in the cash register product, its print speed is slower, and noise is big in the work, and the bill of output is clear inadequately.
The purpose of this utility model is to be directed to the problem of above-mentioned existence and a kind of real-time network terminating machine is provided, adopt the distributed bus net, realized real-time communication with server by the RS485 interface, realize main frame (server) and the real-time communication of many cash register terminals, and online sales processing and backstage merchandise control.Simultaneously in product, adopt liquid crystal display device, realized the menu Chinese character prompting, user interface close friend.Adopt thermal printer, improved print speed, reduced running noises, the output bill is clear.
The utility model purpose is achieved in that
It is made up of management control section, server interface part, keyboard, LCD display module, mini-printer part and power unit.
Management control section: constitute management and control circuit by core component single-chip microcomputer, outfit address latch, program storage, data storage, display library stores device, logic control circuit, clock circuit, keyboard scanning circuit, LCD display control circuit, buzzing indication control circuit, reset circuit; The input of address latch is connected to the data address multiplexing line of single-chip microcomputer, its output is connected to the low eight bit address lines of program storage, data storage and demonstration library stores device, the high eight-bit address wire of program storage is connected on the high eight-bit address wire of single-chip microcomputer, the read-write of data storage is connected on the reading writing signal line of single-chip microcomputer, the reading writing signal line of program storage respectively by single-chip microcomputer /PSEN and VCC provide, the high address line of character library is connected to respectively on the high address line and extended address line of single-chip microcomputer, and read signal is connected on the reading signal lines of single-chip microcomputer; Chip selection signal is formed by one-chip machine port output and the decoding of logic control partial circuit; Keyboard scanning circuit is made of latch and data buffer, and single-chip microcomputer will scan input code and read in by data/address bus, and the corresponding operation of finishing dealing with makes an explanation; Logic control circuit produces the selection signal of each part work of management control; The LCD display control circuit is sent the video data of data/address bus into Liquid Crystal Module, the state information of Liquid Crystal Module is sent into single-chip microcomputer, the control signal of Liquid Crystal Module is by the low order address line of single-chip microcomputer and the control signal combination results of logic control part, the data wire of Liquid Crystal Module connects the P0 mouth of single-chip microcomputer, to realize the demonstration of data; Reset circuit is made of integrated chip and the peripheral components of resetting, when powering on, produce reset signal, the part that resets simultaneously also has the function of voltage monitoring and watchdog circuit, when VCC drops to a certain degree or program running when entering malfunction, this part produces reset signal protection terminal and withdraws from from malfunction;
Keyboard: form by numerical key, function key, key swift to operate; Be used to finish the data input of terminal operation and realize various functions;
Server interface part: form by level transferring chip and photoelectric isolating device and interface power supply; The TXD signal of master control single-chip microcomputer is by photoelectric isolating device and isolate the input that not gate inserts level translator, the output of level translator is through photoelectric isolating device and isolate the RXD input that not gate is received master controller, and the control end of level translator inserts the T0 end of master controller by photoelectric isolating device and not gate; The power supply of this part is input to the integrated bridge circuit for 9 volts by interchange and carries out rectification, and through sending into the input of integrated voltage stabilizer after the Filtering Processing of capacitor, the output of integrated regulator provides the working power of this part;
The LCD display module: the LCD display module is the graphic alphanumeric display of 122*32, is used for the information and the actions menu of display routine work;
Mini-printer control section: form by microprinting head, print management control circuit, interface circuit, drive circuit, printhead data transaction receiving circuit, logic control circuit and printer power supply circuit; The print management control circuit adopts the independently operation of Single-chip Controlling printer each several part, and will desire type information and convert to and print sign indicating number; The information input printer of parallel interface with master controller adopted in the interface section; The ruuning situation of drive circuit control printer paper feed motor;
Power unit: by exchange 12 volts behind rectifying and wave-filtering+12 volts of power supplys provide, through switch voltage-stabilizing integrated chip and inductance, fly-wheel diode composition.
Advantage of the present utility model is as follows:
1, realized and the real-time communication of server by the RS485 interface, realized that main frame (server) and the real time information of many station terminals machine transmit, and online sales processing and backstage merchandise control.
2, interface circuit adopts photoelectrical coupler and insulating power supply, and antijamming capability is strong.
3, adopt LCD MODULE, Chinese character shows that the menu indication is clear.
4, adopt thermal printer, print speed is fast, the bill clear display.
5, adopt integrated watchdog circuit, after program occur to be disturbed fault to enter " deadlock " state or voltage to be reduced to the scope of permission, withdraw from the fault circulation rapidly, make the machine reliable reset.
6, adopt integrated logical device, improved reliability of operation, maintain easily.
7, adopt switching power supply, improved the utilance and the antijamming capability of power supply.
8, print control circuit and be provided with temperature sensing circuit, time-out printing when printhead temperature is too high, the assurance printhead is worked safely and reliably.
Fig. 1 is the circuit block diagram of real-time network terminating machine.
Fig. 2 is management control section, interface control section, keyboard, LCD display part and power unit circuit diagram.
Fig. 3 is a printer control section circuit diagram.
Describe the utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1, 2, 3, the master control part parallel circuit constitutes:
The core component of terminating machine is the 80C32 single-chip microcomputer, is equipped with address latch 74HC573, external program memory AT29C512, dynamic data storage device HM62256LP, shows that character library TMS27C020, programmable logic controller (PLC) PAL16V8D constitute basic terminating machine control unit; The P0 mouth of single-chip microcomputer 80C32 is data and address multiplex line, and the P2 mouth is the most-significant byte address wire, and the P1.0-P1.3 mouth connects input/output signal line and the control signal wire of watchdog circuit X25045, and P1.7 connects the control line of buzzer; The reset signal RESET of 80C32 connects the RST reset output terminal of X25045, the P3 mouth used INT0, INT1 and serial port the communication pin and/WR ,/signals such as RD; Address latch 74HC573 latchs the least-significant byte address of single-chip microcomputer 80C32 output, the P0 mouth of its input termination 80C32, the least-significant byte address wire of output termination program storage AT29C512, dynamic data memory HM62256LP and character library TMS27C020 is for memory and character library provide the least-significant byte address signal; Program storage AT29C512 is the E of 64K byte
2Prom memory, solidified the application software of this machine, its data wire links to each other with the P0 mouth of 80C32, the least-significant byte address is from the output of 74HC573, the P2 mouth of 80C32 is inserted in the most-significant byte address, output enable signal/OE inserts 80C32's/PSEN, the data wire of data storage HM62256LP links to each other with the P0 mouth of 80C32, the least-significant byte address is from the output of 74HC573, high 7 bit address insert the A8-A14 of the P2 mouth of 80C32, sheet selects CS to meet the A15 of the P2 mouth of 80C32, WE connects 80C32's/WR, OE connect 80C32 /RD, show that the data wire of character library TMS27C020 links to each other with the P0 mouth of 80C32, the least-significant byte address is from the output of 74HC573, high 11 bit address insert the Q1-Q4 output of the A8-A13 of P2 mouth and the latch 74HC273 of 80C32 respectively, and sheet selects CS1 to be produced by logic controller PAL16V8D, OE connect 80C32 /RD, buzzer control section circuit is formed control circuit by 74HC04 not gate and triode 9013, piping and stop by the port controlling buzzer of 80C32; Display adopts the liquid crystal display device module of EDM12232A graphical dots configuration, and the data wire of LCD module connects the P0 mouth of 80C32, and control signal and read-write meet output A0 and the A1 of 74HC573 respectively, and chip selection signal connects the output of logic controller PAL16V8D; Keyboard scanning circuit is made up of 74HC273,74HC244 and 40 buttons, 74HC273 sends keyboard scanning signal, 74HC244 reads key assignments, the input of 74HC273 and the output of 74HC244 are connected to data/address bus, and the chip selection signal of 74HC244 and the chip selection signal of 74HC273 are all produced by logic control circuit PAL16V8D; The operation of each several part is partly controlled in master control, handles information exchange and logic control sequential between the each several part;
The circuit of server interface part constitutes: netting twine is crossed by employing distributed bus Netcom and the server network interface card links, and links by RS485 and netting twine; RS485 adopts the half duplex communication mode, carries out communication with main frame by communications protocol; This part adopts insulating power supply, and communication interface adopts photoelectrical coupler 6N137, and the RS485 interface chip adopts MAX483E; The TXD signal of 80C32 meets 6N137 through 74HC04 and carries out the photoelectricity isolation, insert the input of MAX483E through 74HC04, the output of MAX483E is received the RXD input of 80C32 through 74HC04 and 6N137 and 74HC04, and the control end of MAC483E inserts the T0 end of 80C32 by 6N137 and 74HC04; The power supply of this part is input to the integrated bridge circuit for 9 volts by interchange and carries out rectification, and through sending into the input of integrated voltage stabilizer 78L05 after the Filtering Processing of capacitor, the output of integrated regulator provides the working power of this part;
Reset circuit constitutes: reset circuit mainly is made up of X25045 chip and peripheral circuit thereof, and there is the E of 512*8 position X25045 inside
2ROM can be used for storage information; Produce reset signal when powering on, the part that resets simultaneously also has the function of voltage monitoring and watchdog circuit, and when VCC drops to a certain degree or program running when entering malfunction, this part produces reset signal protection terminal and withdraws from from malfunction;
Power unit; By exchange 12 volts behind rectifying and wave-filtering+12 volts of power supplys provide, and through switch voltage-stabilizing integrated chip MC34063 and inductance, fly-wheel diode composition buck switching power supply, provide the working power VCC of terminating machine;
Print processing control section circuit constitutes: the AT89C52 single-chip microcomputer is the printing portion master controller, its inner 8KPEROM has solidified the application program that print control section is divided, the P0 mouth of AT89C52 single-chip microcomputer is data and address multiplex line, the P2 mouth is the most-significant byte address wire, P1.5-1.7 connects input/output signal line and the clock cable of watchdog circuit X25045, and P1.0-P1.4 connects the control signal of printer and the control line of drive motors circuit; The control line of X25045 meets the TXD of AT89C52, the RXD of AT89C52 connects the not incoming line of load signal of printhead, the P3 mouth used INT0, INT1 and TXD, RXD and/WR ,/RD, T1, T0 signal, the system line of X25045 meets the TXD of AT89C52, the RXD of AT89C52 connects the not incoming line of load signal of printhead, INT1 connects the scarce paper holding wire of printhead, and INT0 and T0 connect the P3 mouth of 80C32, and T1 connects the CLK1 holding wire of 74HC165; Address latch 74HC573 latchs the least-significant byte address of single chip computer AT 89C52 output, the P0 mouth of its input termination AT89C52, output is connected to the least-significant byte address wire of dynamic data memory HM62256LP and character library TMS27C040, for memory and character library provide the least-significant byte address signal; The data wire of dynamic data memory HM62256LP links to each other with the P0 mouth of 89C52, the least-significant byte address is from the output of 74HC573, high 7 bit address insert the A8-A14 of the P2 mouth of 89C52, sheet selects CS to meet the A15 of the P2 mouth of 89C52, WE connects 89C52's/WR, OE connects 89C52's/RD, the data wire that shows character library TMS27C040 links to each other with the P0 mouth of 89C52, the least-significant byte address is from the output of 74HC573, high 11 bit address insert the A8-A12 of the P2 mouth of 89C52 respectively, the Q1-Q6 output of latch 74HC273, sheet selects CS to produce address decode signal by logic controller PAL16V8D, OE connect 89C52 /RD; Print data outputs to printhead by the 74HC165 serial, the clock signal of the port lines control 74HC165 of AT89C52, and the PL signal is produced by PAL16V8D; The bringing-up section signal exports printhead to by 74HC273; The sequential logic signal of this partial circuit is produced by the PAL16V8D controller; The employing parallel communication interface of printer control section and 80C32, master controller is sent to printer by 74HC574 with parallel data;
Print temperature Data Detection partial circuit is made of double channel A/D transducer ADC0832 and discrete component, and printhead temperature inside signal enters ADC0832 by the CHO passage, by reception of P1 mouth and the treatment conversion value of AT89C52;
Printhead paper feed Electric Machine Control partial circuit is made of two PBL3717A and peripheral components, the HALFA that produces of AT89C52 and HALFB signal the 8th pin that meets PBL3717A wherein, PHASE1 and PHASE2 connect the 9th pin of PBL3717A, and the driving power of this part adopts the independent current source+5V of printer section;
The printing portion reset circuit constitutes: reset circuit mainly is made up of X25045 chip and peripheral circuit thereof, and X25045 inside has the E2ROM of 512*8 position to can be used for storage information; Produce reset signal when powering on, the part that resets simultaneously also has the function of voltage monitoring and watchdog circuit, and when VCC drops to a certain degree or program running when entering malfunction, this part produces reset signal protection terminal and withdraws from from malfunction;
Printhead adopts the M-T153 thermal printing head.
The printing portion power supply: by exchange 12 volts behind rectifying and wave-filtering+12 volts power supplys provide, through switch voltage-stabilizing integrated chip MC34063 and inductance, fly-wheel diode composition buck switching power supply, generation+5V DC power supply confession printing portion paper feed motor-driven source.
Claims (2)
1. real-time network terminating machine is characterized in that it includes:
Management control section: constitute management and control circuit by core component single-chip microcomputer, outfit address latch, program storage, data storage, display library stores device, logic control circuit, clock circuit, keyboard scanning circuit, LCD display control circuit, buzzing indication control circuit, reset circuit; The input of address latch is connected to the data address multiplexing line of single-chip microcomputer, its output is connected to the low eight bit address lines of program storage, data storage and demonstration library stores device, the high eight-bit address wire of program storage is connected on the high eight-bit address wire of single-chip microcomputer, the read-write of data storage is connected on the reading writing signal line of single-chip microcomputer, the reading writing signal line of program storage respectively by single-chip microcomputer /PSEN and VCC provide, the high address line of character library is connected to respectively on the high address line and extended address line of single-chip microcomputer, and read signal is connected on the reading signal lines of single-chip microcomputer; Chip selection signal is formed by one-chip machine port output and the decoding of logic control partial circuit; Keyboard scanning circuit is made of latch and data buffer, and single-chip microcomputer will scan input code and read in by data/address bus, and the corresponding operation of finishing dealing with makes an explanation; Logic control circuit produces the selection signal of each part work of management control; The LCD display control circuit is sent the video data of data/address bus into Liquid Crystal Module, the state information of Liquid Crystal Module is sent into single-chip microcomputer, the control signal of Liquid Crystal Module is by the low order address line of single-chip microcomputer and the control signal combination results of logic control part, the data wire of Liquid Crystal Module connects the P0 mouth of single-chip microcomputer, to realize the demonstration of data; Reset circuit is made of integrated chip and the peripheral components of resetting, when powering on, produce reset signal, the part that resets simultaneously also has the function of voltage monitoring and watchdog circuit, when VCC drops to a certain degree or program running when entering malfunction, this part produces reset signal protection terminal and withdraws from from malfunction;
Keyboard: form by numerical key, function key, key swift to operate; Be used to finish the data input of terminal operation and realize various functions;
Server interface part: form by level transferring chip and photoelectric isolating device and interface power supply; The TXD signal of master control single-chip microcomputer is by photoelectric isolating device and isolate the input that not gate inserts level translator, the output of level translator is through photoelectric isolating device and isolate the RXD input that not gate is received master controller, and the control end of level translator inserts the T0 end of master controller by photoelectric isolating device and not gate; The power supply of this part is input to the integrated bridge circuit for 9 volts by interchange and carries out rectification, and through sending into the input of integrated voltage stabilizer after the Filtering Processing of capacitor, the output of integrated regulator provides the working power of this part;
The LCD display module: the LCD display module is the graphic alphanumeric display of 122*32, is used for the information and the actions menu of display routine work;
Mini-printer control section: form by microprinting head, print management control circuit, interface circuit, drive circuit, printhead data transaction receiving circuit, logic control circuit and printer power supply circuit; The print management control circuit adopts the independently operation of Single-chip Controlling printer each several part, and will desire type information and convert to and print sign indicating number; The information input printer of parallel interface with master controller adopted in the interface section; The ruuning situation of drive circuit control printer paper feed motor;
2, real-time network terminating machine according to claim 1, it is characterized in that: the core component of terminating machine is the 80C32 single-chip microcomputer, is equipped with address latch 74HC573, external program memory AT29C512, dynamic data storage device HM62256LP, shows that character library TMS27C020, programmable logic controller (PLC) PAL16V8D constitute the control unit of basic terminating machine; The P0 mouth of single-chip microcomputer 80C32 is data and address multiplex line, and the P2 mouth is the most-significant byte address wire, and the P1.0-P1.3 mouth connects input/output signal line and the control signal wire of watchdog circuit X25045, and P1.7 connects the control line of buzzer; The reset signal RESET of 80C32 connects the RST reset output terminal of X25045, the P3 mouth used INT0, INT1 and serial port the communication pin and/WR ,/the RD signal; Address latch 74HC573 latchs the least-significant byte address of single-chip microcomputer 80C32 output, the P0 mouth of its input termination 80C32, the least-significant byte address wire of output termination program storage AT29C512, dynamic data memory HM62256LP and character library TMS27C020 is for memory and character library provide the least-significant byte address signal; Program storage AT29C512 is the E of 64K byte
2Prom memory, solidified the application software of this machine, its data wire links to each other with the P0 mouth of 80C32, the least-significant byte address is from the output of 74HC573, the P2 mouth of 80C32 is inserted in the most-significant byte address, output enable signal/OE inserts 80C32's/PSEN, the data wire of data storage HM62256LP links to each other with the P0 mouth of 80C32, the least-significant byte address is from the output of 74HC573, high 7 bit address insert the A8-A14 of the P2 mouth of 80C32, sheet selects CS to meet the A15 of the P2 mouth of 80C32, WE connects 80C32's/WR, OE connect 80C32 /RD, show that the data wire of character library TMS27C020 links to each other with the P0 mouth of 80C32, the least-significant byte address is from the output of 74HC573, high 11 bit address insert the Q1-Q4 output of the A8-A13 of P2 mouth and the latch 74HC273 of 80C32 respectively, and sheet selects CS1 to be produced by logic controller PAL16V8D, OE connect 80C32 /RD, buzzer control section circuit is formed control circuit by 74HC04 not gate and triode 9013, by the port controlling buzzer of 80C32 toot cry and stop; Display adopts the liquid crystal display device module of EDM12232A graphical dots configuration, and the data wire of LCD module connects the P0 mouth of 80C32, and control signal and read-write meet output A0 and the A1 of 74HC573 respectively, and chip selection signal connects the output of logic controller PAL16V8D; Keyboard scanning circuit is made up of 74HC273,74HC244 and 40 buttons, 74HC273 sends keyboard scanning signal, 74HC244 reads key assignments, the input of 74HC273 and the output of 74HC244 are connected to data/address bus, and the chip selection signal of 74HC244 and the chip selection signal of 74HC273 are all produced by logic control circuit PAL16V8D; The operation of each several part is partly controlled in master control, handles information exchange and logic control sequential between the each several part;
The circuit of server interface part constitutes: netting twine is crossed by employing distributed bus Netcom and the server network interface card links, and links by RS485 and netting twine; RS485 adopts the half duplex communication mode, carries out communication with main frame by communications protocol; For improving antijamming capability, this part adopts insulating power supply, and communication interface adopts photoelectrical coupler 6N137, and the RS485 interface chip adopts MAX483E; The TXD signal of 80C32 meets 6N137 through 74HC04 and carries out the photoelectricity isolation, insert the input of MAX483E through 74HC04, the output of MAX483E is received the RXD input of 80C32 through 74HC04 and 6N137 and 74HC04, and the control end of MAC483E inserts the T0 end of 80C32 by 6N137 and 74HC04; The power supply of this part is input to the integrated bridge circuit for 9 volts by interchange and carries out rectification, and through sending into the input of integrated voltage stabilizer 78L05 after the Filtering Processing of capacitor, the output of integrated regulator provides the working power of this part;
Reset circuit constitutes: reset circuit mainly is made up of X25045 chip and peripheral circuit thereof, and there is the E of 512*8 position X25045 inside
2ROM can be used for storage information; Produce reset signal when powering on, the part that resets simultaneously also has the function of voltage monitoring and watchdog circuit, and when VCC drops to a certain degree or program running when entering malfunction, this part produces reset signal protection terminal and withdraws from from malfunction;
Power unit: by exchange 12 volts behind rectifying and wave-filtering+12 volts of power supplys provide, and through switch voltage-stabilizing integrated chip MC34063 and inductance, fly-wheel diode composition buck switching power supply, provide the working power VCC of terminating machine;
Print processing control section circuit constitutes: the AT89C52 single-chip microcomputer is the printing portion master controller, its inner 8KPEROM has solidified the application program that print control section is divided, the P0 mouth of AT89C52 single-chip microcomputer is data and address multiplex line, the P2 mouth is the most-significant byte address wire, P1.5-1.7 connects input/output signal line and the clock cable of watchdog circuit X25045, and P1.0-P1.4 connects the control signal of printer and the control line of drive motors circuit; The control line of X25045 meets the TXD of AT89C52, the RXD of AT89C52 connects the not incoming line of load signal of printhead, the P3 mouth used INT0, INT1 and TXD, RXD and/WR ,/RD, T1, T0 signal, the control line of X25045 meets the TXD of AT89C52, the RXD of AT89C52 connects the not incoming line of load signal of printhead, INT1 connects the scarce paper holding wire of printhead, and INT0 and T0 connect the P3 mouth of 80C32, and T1 connects the CLK1 holding wire of 74HC165; Address latch 74HC573 latchs the least-significant byte address of single chip computer AT 89C52 output, the P0 mouth of its input termination AT89C52, output is connected to the least-significant byte address wire of dynamic data memory HM62256LP and character library TMS27C040, for memory and character library provide the least-significant byte address signal; The data wire of dynamic data memory HM62256LP links to each other with the P0 mouth of 89C52, the least-significant byte address is from the output of 74HC573, high 7 bit address insert the A8-A14 of the P2 mouth of 89C52, sheet selects CS to meet the A15 of the P2 mouth of 89C52, WE connects 89C52's/WR, OE connects 89C52's/RD, the data wire that shows character library TMS27C040 links to each other with the P0 mouth of 89C52, the least-significant byte address is from the output of 74HC573, high 11 bit address insert the A8-A12 of the P2 mouth of 89C52 respectively, the Q1-Q6 output of latch 74HC273, sheet selects CS to produce address decode signal by logic controller PAL16V8D, OE connect 89C52 /RD; Print data outputs to printhead by the 74HC165 serial, the clock signal of the port lines control 74HC165 of AT89C52, and the PL signal is produced by PAL16V8D; The bringing-up section signal exports printhead to by 74HC273; The sequential logic signal of this partial circuit is produced by the PAL16V8D controller; The employing parallel communication interface of printer control section and 80C32, master controller is sent to printer by 74HC574 with parallel data;
Print temperature Data Detection partial circuit is made of double channel A/D transducer ADC0832 and discrete component, and printhead temperature inside signal enters ADC0832 by the CHO passage, by reception of P1 mouth and the treatment conversion value of AT89C52;
Printhead paper feed Electric Machine Control partial circuit is made of two PBL3717A and peripheral components, the HALFA that produces of AT89C52 and HALFB signal the 8th pin that meets PBL3717A wherein, PHASE1 and PHASE2 connect the 9th pin of PBL3717A, and the driving power of this part adopts the independent current source+5V of printer section;
The printing portion reset circuit constitutes: reset circuit mainly is made up of X25045 chip and peripheral circuit thereof, and X25045 inside has the E2ROM of 512*8 position to can be used for storage information; Produce reset signal when powering on, the part that resets simultaneously also has the function of voltage monitoring and watchdog circuit, and when VCC drops to a certain degree or program running when entering malfunction, this part produces reset signal protection terminal and withdraws from from malfunction;
Printhead adopts the M-T153 thermal printing head.
The printing portion power supply: by exchange 12 volts behind rectifying and wave-filtering+12 volts power supplys provide, through switch voltage-stabilizing integrated chip MC34063 and inductance, fly-wheel diode composition buck switching power supply, generation+5V DC power supply confession printing portion paper feed motor-driven source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211589 CN2468231Y (en) | 2001-02-13 | 2001-02-13 | Real-time network terminal |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211589 CN2468231Y (en) | 2001-02-13 | 2001-02-13 | Real-time network terminal |
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| Publication Number | Publication Date |
|---|---|
| CN2468231Y true CN2468231Y (en) | 2001-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01211589 Expired - Fee Related CN2468231Y (en) | 2001-02-13 | 2001-02-13 | Real-time network terminal |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1332546C (en) * | 2003-07-07 | 2007-08-15 | 浙江中控技术股份有限公司 | Ethernet gateway based on field bus and implementing method thereof |
| CN100337197C (en) * | 2002-10-14 | 2007-09-12 | 华为技术有限公司 | Guide program recorder and method for guarantee of online upgrading thereof |
| CN100349153C (en) * | 2005-08-17 | 2007-11-14 | 杭州华三通信技术有限公司 | Method for realizing output control and device for controlling interface card by mainboard |
| CN102393810A (en) * | 2011-07-20 | 2012-03-28 | 上海杉德金卡信息系统科技有限公司 | Method for controlling printing of thermal printer by FPGA (Field Programmable Gate Array) |
| CN103840658A (en) * | 2014-03-19 | 2014-06-04 | 成都引众数字设备有限公司 | Power switch circuit of time calibration instrument |
| CN109240147A (en) * | 2017-07-11 | 2019-01-18 | 苏州力耀新能源科技有限公司 | A kind of infant industry door machine controller |
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2001
- 2001-02-13 CN CN 01211589 patent/CN2468231Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100337197C (en) * | 2002-10-14 | 2007-09-12 | 华为技术有限公司 | Guide program recorder and method for guarantee of online upgrading thereof |
| CN1332546C (en) * | 2003-07-07 | 2007-08-15 | 浙江中控技术股份有限公司 | Ethernet gateway based on field bus and implementing method thereof |
| CN100349153C (en) * | 2005-08-17 | 2007-11-14 | 杭州华三通信技术有限公司 | Method for realizing output control and device for controlling interface card by mainboard |
| CN102393810A (en) * | 2011-07-20 | 2012-03-28 | 上海杉德金卡信息系统科技有限公司 | Method for controlling printing of thermal printer by FPGA (Field Programmable Gate Array) |
| CN103840658A (en) * | 2014-03-19 | 2014-06-04 | 成都引众数字设备有限公司 | Power switch circuit of time calibration instrument |
| CN109240147A (en) * | 2017-07-11 | 2019-01-18 | 苏州力耀新能源科技有限公司 | A kind of infant industry door machine controller |
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